Bill Gates is working on clean energy solutions through Breakthrough Energy Coalition, a private group of billionaire investors, and the Mission Innovation, a public group of over 20 countries committed to doubling government investments in clean energy.

Backyard greenhouses tend to toe the line when it comes to form following function, meaning they end up being an eyesore in an otherwise immaculate yard. The Studio Sprout greenhouse is of a different ilk, adding style and beauty without sacrificin

Across the U.S. Midwest, homeowners are restoring their yards and former farmland to the native prairie that existed in pre-settlement days. The benefits can be substantial -- maintenance that uses less water and no fertilizer, and an ecosystem that suppor

Indigenous leaders from all over South America are making their way by foot, canoe and eventually on buses to be part of the Kari-Oca Caravan to Rio de Janeiro, to talk to world leaders at the United Nations Conference on Sustainable Development, Rio+20.

Many building material manufacturers flocked to asbestos as an effective product that could prevent fire damage and provide effective insulation. Now, we suffer the effects--measured by # of lives taken from Asbestos related diseases such as mesothelioma.

"Plastic Wars" correspondent Amber Lyon finds plastic bags everywhere they should not be - in trees, on streets and even at the bottom of the ocean. She talks to a veterinarian who says he has seen plastic bags in the stomachs of whales, sea lions and do